If N is a positive integer, it must be either even or odd.
If N is odd, then N-1 will be even.
If N is even, then N-1 will be odd.
Either way, when you multiply n and n-1, one of those expressions is going to be an even number, and any number multiplied by an even number is an even number.
Hope this helps! :)
Answer:
-9 and 6
Step-by-step explanation:
The correct answer would be (4*5)w because you would multiple the number of pages that she reads per week then you multiply that by how many weeks she reads.
Because there are points and you can make a shape
Answer: y= 2x +7
Step-by-step explanation:
